Boring device.



BORING DEVICE.

APPLICATION FILED JULY 17,1913.

Patented Nov. 24,1914.

ATTORNEYS UNITED STATES PATENT OFFICE.

JOHN EVERETT BROOKS, HAYDEN HENDRIGK S'LEPPY, AND JAMES JOSEPH YARNELL, F WILMINGTON, CALIFORNIA.

BORING DEVICE.

Application filed July 17, 1913.

T 0 all whom it may concern Be it known that we, JOHN EVERETT BnooKs, HAYDEN HENDRICK SLEPPY, and JAMES 'JOsEPH YARNELL, citizens of the United States, and residents of Wilmington, in the county of Los Angelcs and State of California, have made certain new and useful Improvements in Boring Devices, of which the following is a specification.

Our invention relates to improvements in boring devices, and it consists ip th'e combinations, constructions and arrangements herein described and claimed.

An object of our invention is to provide a power device by means of which post holes or holes for electric light poles may be bored quickly and economically.

A further object of our invention is to provide means for boring holes of different de t ther objects and advantages will appear in the following specification and the novel features of the device will be particularly pointed out in the appended claim.

Our invention is illustrated in the accompanying drawings forming part of this application in Which- Figure 1 is a side view of a portion of the device and Fig. 2 is a face view of the boring head.

In carrying out our invention we provide a boring head like that shown in Fig. 2.

This consists of a central blade 1 having a tongue 2 secured to it and arranged to enter a socket 3 in the lower end of a shaft 4. The tongue 2 may be adjustably held in the socket 3 by means of a set screw 3. The tongue 2 is provided with laterally extend ing arms 4* arranged to support blades 4 like those shown in Fig. 2, these blades being slightly curved and facing in opposite directions on opposite sides of the shaft. Arranged to slip over the shaft 4 is a sleeve 5 which is secured in position by means of a set screw 6. The sleeve bears a spiral conveyer 7.

:Referring now to Fig. 1, l have shown therein a base 8 which is supported in any suitable manner as by the downwardly extending supports 9. The base is designed Specification or ietters Patent.

Patented Nov. 24, 1914.1

Serial No. 779,562.

to support a motor such as a gasolene engine E. Uprights 10 are provided between which is journaled a shaft 11 provided with a sprocket wheel 12 arranged to be driven by a sprocket chain 13 running over the sprocket wheel 14 on the shaft a of the engine E. A cross member 15 is carried by the supports 10. The shaft 11 bears a beveled gear 16 arranged to engage a beveled gear 17 disposed above and resting on the support 15.

The shaft 4 to which the drill head is secured is connected with a rod 18, a sleeve 19 having pins 20. being provided for the purpose of connection.

The rod 18 has a key-way 18 at its upper end. It passes through the gear 17 which has a feather 17 arranged to enter the key-way 18*. This permits the rod 18 to slide upwardly and downwardly and at the same time transmits the movement of the rotating gea} 17 so that the rod will rotate with the gear. The support 15 is provided with ane-topening arranged to receive the shaft 18 and acts as a guide for the latter.

Disposed upon the shaft 18 is a sleeve 21, which bears on its outer surface a rack22. The sleeve is kept from longitudinal movement along the shaft 18 by the collars 23 and 24 respectively. Between the sleeve 21 and the collars 23 and 24 are friction washers 25. A pinion 26 on a shaft 27 is arranged to mesh with a rack 22 and upon this shaft is a hand wheel 28 by means of which the shaft 27 may be turned.

From the foregoing description of the va rious parts of the device the operation there of may be readily understood.

It will be apparent that when the engine is running the boring head will be rotated through the medium of the gear 17 and the connected rods 18 and 4. By manipulating the hand wheel 28 the boring head may be raised or lowered without interfering with the rotary motion thereof.

The central boring member or blade 1 cuts out the center of the hole and the auxiliary blades 4 aid in removing the dirt which is delivered to the conveyer 7 and is thus passed upwardly.

We claim:

In a boring device, a shaft provided at its end with a socket, a tongue arranged to enter said socket, a pointed blade carried by said tongue, laterally extending arms carried by said tongue, auxiliary blades carried by said laterally extending arms, a sleeve secured to said shaft above said auxiliary blades, and

a spiral conveyer carried by said sleeve on the outer side thereof.

JOHN EVERETT BROOKS.

HAYDEN HENDRICK SLEPPY. JAMES JOSEPH YARNELL Witnesses:

DON O. FoHL, PAUL EUBANK. 

